From Spidell today:

We have been contacted recently by many practitioners about a critical diagnostic in Lacerte and ProConnect stating that their returns cannot be filed because California Form 7203 is not available yet. The Lacerte forms availability page lists this form under California individual forms and states that it will be available March 31.

We have confirmed with the FTB that there is no California Form 7203 and they are not creating one at this time. Spidell has asked the FTB to reach out to their contacts at Intuit about this issue.